This list of confidence tricks and scams should not be considered complete, but covers the most common examples. Confidence tricks and scams are difficult to classify, because they change often and often contain elements of more than one type. Throughout this list, the perpetrator of the confidence trick is called the “con artist” or simply “artist”, and the intended victim is the “mark”.

Count Victor Lustig sold the “money-printing machine” which he claimed could copy $100 bills. The client, sensing huge profits, would buy the machines for a high price (usually over $30,000). Over the next twelve hours, the machine would produce just two more $100 bills, but after that it produced only blank paper, as its supply of hidden $100 bills would have become exhausted. By the time the clients realized that they had been scammed, Lustig was long gone.[citation needed] This type of scheme is also called the “money box” scheme.

Salting or “salting the mine” are terms for a scam in which gemstones or gold ore are planted in a mine or on the landscape, duping the greedy mark into purchasing shares in a worthless or non-existent mining company.[1] During gold rushes, scammers would load shotguns with gold dust and shoot into the sides of the mine to give the appearance of a rich ore, thus “salting the mine”. Examples include the diamond hoax of 1872 and the Bre-X gold fraud of the mid-1990s. This trick was featured in the HBO series Deadwood, when Al Swearengen and E. B. Farnum trick Brom Garret into believing gold is to be found on the claim Swearengen intends to sell him. Also used by George Smiley's arch enemy Karla in the movie Tinker, Tailor, Soldier, Spy for Cold War espionage.

The Spanish Prisoner scam—and its modern variant, the advance-fee fraud or “Nigerian letter scam”—takes advantage of the victim's greed. The basic premise involves enlisting the mark to aid in retrieving some stolen money from its hiding place. The victim sometimes believes he can cheat the con artists out of their money, but anyone trying this has already fallen for the essential con by believing that the money is there to steal (see also Black money scam). Note that the classic Spanish Prisoner trick also contains an element of the romance scam (see below).

Many con men employ extra tricks to keep the victim from going to the police. A common ploy of investment scammers is to encourage a mark to use money concealed from tax authorities. The mark cannot go to the authorities without revealing that he has committed tax fraud. Many swindles involve a minor element of crime or some other misdeed. The mark is made to think that he will gain money by helping fraudsters get huge sums out of a country (the classic advance-fee fraud/Nigerian scam); hence a mark cannot go to the police without revealing that he planned to commit a crime himself.

In a twist on the Nigerian fraud scheme, the mark is told he is helping someone overseas collect debts from corporate clients. Large cheques stolen from businesses are mailed to the mark. These cheques are altered to reflect the mark's name, and the mark is then asked to cash them and transfer all but a percentage of the funds (his commission) to the con artist. The cheques are often completely genuine, except that the "pay to" information has been expertly changed. This exposes the mark not only to enormous debt when the bank reclaims the money from his account, but also to criminal charges for money laundering. A more modern variation is to use laser-printed counterfeit cheques with the proper bank account numbers and payer information.

A grandparent gets a call or e-mail from someone claiming to be a grandchild in trouble abroad. For instance, the scammer may claim “I’ve been arrested in another country, and need money wired quickly to pay my bail. And oh by the way, don’t tell my mom or dad because they’ll only get upset!” The call is fraudulent impersonation, the name of the grandchild typically obtained from social media postings, and any money wired out of the country is gone forever.[2]

The traditional romance scam has now moved into Internet dating sites. The con actively cultivates a romantic relationship which often involves promises of marriage. However, after some time it becomes evident that this Internet "sweetheart" is stuck in his or her home country or a third country, lacking the money to leave and thus unable to be united with the mark. The scam then becomes an advance-fee fraud or a check fraud. A wide variety of reasons can be offered for the trickster's lack of cash, but rather than just borrow the money from the victim (advance fee fraud), the con-person normally declares that he has checks which the victim can cash on his behalf and remit the money via a non-reversible transfer service to help facilitate the trip (check fraud). Of course, the checks are forged or stolen and the con-person never makes the trip: the hapless victim ends up with a large debt and an aching heart. This scam can be seen in the movie Nights of Cabiria.

In some cases, an on-line dating site is itself engaged in fraud, posting profiles of fictional persons or persons which the operator knows are not currently looking for a date in the advertised locality.[3]

One traditional swindle involves fortune telling. In this scam, a fortune teller uses his or her cold reading skill to detect that a client is genuinely troubled rather than merely seeking entertainment; or is a gambler complaining of bad luck. The fortune teller informs the mark that he is the victim of a curse, and that for a fee a spell can be cast to remove the curse. In Romany, this trick is called bujo ("bag") after one traditional format: the mark is told that the curse is in his money; he brings money in a bag to have the spell cast over it, and leaves with a bag of worthless paper.[4] Fear of this scam has been one justification for legislation that makes fortune telling a crime.[5]

This scam got a new lease on life in the electronic age with the virus hoax. Fake anti-virus software falsely claims that a computer is infected with viruses, and renders the machine inoperable with bogus warnings unless blackmail is paid. In the Datalink Computer Services incident, a mark was fleeced of several million dollars by a firm that claimed that his computer was infected with viruses, and that the infection indicated an elaborate conspiracy against him on the Internet.[6][7][8] The alleged scam lasted from August 2004 through October 2010 and is estimated to have cost the victim $6–20 million.[6][9]

Pig in a poke originated in the late Middle Ages. The con entails a sale of a (suckling) "pig" in a "poke" (bag). The bag ostensibly contains a live healthy little pig, but actually contains a cat (not particularly prized as a source of meat). If one buys the bag without looking inside it, the person has bought something of less value than was assumed, and has learned first-hand the lesson caveat emptor. "Buying a pig in a poke" has become a colloquial expression in many European languages, including English, for when someone buys something without examining it beforehand. In some regions the "pig" in the phrase is replaced by "cat", referring to the bag's actual content, but the saying is otherwise identical. This is also said to be where the phrase "letting the cat out of the bag" comes from, although there may be other explanations.

In Portuguese or Spanish speaking countries, the "pig" in the phrase is replaced by a hare or jackrabbit. A victim thinks he is buying a hare, when in reality he is buying a cat, hence the expression "gato por lebre" (in Portuguese) or "gato por liebre" (in Spanish).

The Thai gem scam involves layers of con men and helpers who tell a tourist in Bangkok of an opportunity to earn money by buying duty-free jewelry and having it shipped back to the tourist's home country. The mark is driven around the city in a tuk-tuk operated by one of the con men, who ensures that the mark meets one helper after another, until the mark is persuaded to buy the jewelry from a store also operated by the swindlers. The gems are real but significantly overpriced. This scam has been operating for 20 years in Bangkok, and is said to be protected by Thai police and politicians. A similar scam usually runs in parallel for custom-made suits. Many tourists are hit by con men touting both goods.[citation needed]

In the white van speaker scam, low-quality loudspeakers are sold—stereotypically from a white van—as expensive units that have been greatly discounted. The salesmen explain the ultra-low price in a number of ways; for instance, that their employer is unaware of having ordered too many speakers, so they are sneakily selling the excess behind the boss's back. The "speakermen" are ready to be haggled down to a seemingly minuscule price, because the speakers they are selling, while usually functional, actually cost only a tiny fraction of their "list price" to manufacture. The scam may extend to the creation of Web sites for the bogus brand, which usually sounds similar to that of a respected loudspeaker company. They will often place an ad for the speakers in the "For sale" Classifieds of the local newspaper, at the exorbitant price, and then show you a copy of this ad to "verify" their worth.

People shopping for bootleg software, illegal pornographic images, bootleg music, drugs, firearms or other forbidden or controlled goods may be legally hindered from reporting swindles to the police. An example is the "big screen TV in the back of the truck": the TV is touted as "hot" (stolen), so it will be sold for a very low price. The TV is in fact defective or broken; it may in fact not even be a television at all, since some scammers have discovered that a suitably decorated oven door will suffice.[10] The buyer has no legal recourse without admitting to the attempted purchase of stolen goods. This con is also known as "The Murphy Game".

The badger game extortion is often perpetrated on married men. The mark is deliberately coerced into a compromising position, a supposed affair for example, then threatened with public exposure of his acts unless blackmail money is paid.

A mail fraud typically perpetrated on local restaurateurs, this scheme takes a receipt from a legitimate dry cleaner in the target city, duplicates it thousands of times, and sends it to every upscale eatery in town. An attached note claims a server in the victim's restaurant spilled food, coffee, wine or salad dressing on a diner's expensive suit of clothes and demands reimbursement for dry cleaning costs. As the amount fraudulently claimed from each victim is relatively low, some will give the scammers the benefit of the doubt.

The scam's return address is a drop box; the rest of the contact information is fictional or belongs to an innocent third party. The original dry cleaning shop, which has nothing to do with the scheme, receives multiple irate enquiries from victimised restaurateurs.[11][12]

A clip joint or fleshpot is an establishment, usually a strip club or entertainment bar, typically one claiming to offer adult entertainment or bottle service, in which customers are tricked into paying money and receive poor, or no, goods or services in return. Typically, clip joints suggest the possibility of sex, charge excessively high prices for watered-down drinks, then eject customers when they become unwilling or unable to spend more money. The product or service may be illicit, offering the victim no recourse through official or legal channels.

Also called a coin smack or smack game, two operators trick a victim during a game where coins are matched. One operator begins the game with the victim, then the second joins in. When the second operator leaves briefly, the first colludes with the victim to cheat the second operator. After rejoining the game, the second operator, angry at "losing," threatens to call the police. The first operator convinces the victim to pitch in hush money, which the two operators later split.

Collection agencies operate on the basis of harassment and intimidation; they are businesses with no reputation to lose and therefore are known to attract the sleazy and the dishonest. Many tend to associate with other unscrupulous firms, such as payday loan companies which are little better than loan sharks, are known to prey upon the poor, and the vulnerable as victims unlikely to have legal counsel to defend them.

A consumer inquires about a payday loan or short-term credit online and is asked for a long list of personal information. The lender is a shell firm; the loan might never be made, but the victim's personal information is now in the hands of scammers who hand it to a fraudulent collection agency.[13][14] That agency then launches into a series of harassing phone calls at all hours (often to the victim's workplace), attempts to obtain bank account numbers (allowing the account to be drained through direct withdrawal)[15] or impersonates police (sometimes with caller ID spoofing) to threaten the victim with arrest.[16][17][18] Fake debt collectors often refuse to provide a legally-required written "validation notice" of the debt, provide no evidence a debt is actually owed and demand payment using a money transfer service like Moneygram or Western Union with poor traceability and no chargeback protection.[19] The underlying debt either doesn't exist, is not valid due to a statute of limitations or does not lawfully belong to the entity making the calls; in some cases, the victim is a target of identity theft.[20]

The scammers operate under multiple names, many of which are intended to be mistaken for official or government agencies.[21] The fraudulent calls often originate from abroad; any money extorted is immediately taken out of the country.[22]

A bogus or dishonest law firm is a valuable tool to a scammer in various ways. It can send requests for upfront payments in relation to inheritances coming from unknown relatives, a form of advance fee fraud.[23] It also makes an effective fraudulent collection agency, as victims fear having to pay their own counsel hundreds of dollars per hour to defend against frivolous, vexatious or completely unfounded claims.[24]

In some cases, the dishonest lawyer is merely part of a larger fraudulent scheme.[25] A real estate fraud may involve taking deposits for a project under construction where,[26] in theory, the lawyer is holding the money in escrow, guarding down payments as trust fund assets until a real estate deal closes.[27] When the project is never completed, investors seek their money back but find the supposed trust fund is empty as both lawyer and real estate developer are fraudulent.

Insurance fraud includes a wide variety of schemes in which insureds attempt to defraud their own insurance carriers, but when the victim is a private individual, the con artist tricks the mark into damaging, for example, the con artist's car, or injuring the con artist, in a manner that the con artist can later exaggerate. One relatively common scheme involves two cars, one for the con artist, and the other for the shill. The con artist will pull in front of the victim, and the shill will pull in front of the con artist before slowing down. The con artist will then slam on his brakes to "avoid" the shill, causing the victim to rear-end the con artist. The shill will accelerate away, leaving the scene. The con artist will then claim various exaggerated injuries in an attempt to collect from the victim's insurance carrier despite having intentionally caused the accident. Insurance carriers, who must spend money to fight even those claims they believe are fraudulent, frequently pay out thousands of dollars—a tiny amount to the carrier despite being a significant amount to an individual—to settle these claims instead of going to court.[28]

A variation of this scam occurs in countries where insurance premiums are generally tied to a bonus-malus rating: the con artist will offer to avoid an insurance claim, settling instead for a cash compensation. Thus, the con artist is able to evade a professional damage assessment, and get an untraceable payment in exchange for sparing the mark the expenses of a lowered merit class.

The fiddle game uses the pigeon drop technique. A pair of con men work together, one going into an expensive restaurant in shabby clothes, eating, and claiming to have left his wallet at home, which is nearby. As collateral, the con man leaves his only worldly possession, the violin that provides his livelihood. After he leaves, the second con man swoops in, offers an outrageously large amount (for example $50,000) for such a rare instrument, then looks at his watch and runs off to an appointment, leaving his card for the mark to call him when the fiddle-owner returns. The mark's greed comes into play when the "poor man" comes back, having gotten the money to pay for his meal and redeem his violin. The mark, thinking he has an offer on the table, then buys the violin from the fiddle player who "reluctantly" agrees to sell it for a certain amount that still allows the mark to make a "profit" from the valuable violin. The result is the two con men are richer (less the cost of the violin), and the mark is left with a cheap instrument.

In the 1981 Only Fools and Horses episode "Cash and Curry", the main character, Del Boy, is tricked into paying £2000 for a statue worth £17, believing it to be worth £4000.[29] In the "Cops and Robbers" episode of Hustle the fiddle game is acted out, using a dog instead of a fiddle. It was also detailed in the Neil Gaiman novel American Gods and is the basis for The Streets' song "Can't Con an Honest John". It is also the basis of the Leverage episode "The Studio Job", where a fiddle game was run with a musician used as the fiddle.

The glim-dropper scam is a variation of the fiddle game. It requires several accomplices, one of whom must be a one-eyed man. One grifter goes into a store and pretends he has lost his glass eye. Everyone looks around, but the eye cannot be found. He declares that he will pay a thousand-dollar reward for the return of his eye, leaving contact information. The next day, an accomplice enters the store and pretends to find the eye. The storekeeper (the intended griftee), thinking of the reward, offers to take it and return it to its owner. The finder insists he will return it himself, and demands the owner’s address. Thinking he will lose all chance of the reward, the storekeeper offers a hundred dollars for the eye. The finder bargains him up to $250, and departs. The one-eyed man, of course, cannot be found and does not return. (Described in A Cool Million, or, The Dismantling of Lemuel Pitkin (1934) by Nathanael West). Variants of this con have been used in movies such as The Flim-Flam Man, Hustle, The Traveller (1997), Shade (2003), and Zombieland (2009), and also in books such as American Gods.

Lottery fraud by proxy is a scam in which the scammer buys a lottery ticket with old winning numbers. He or she then alters the date on the ticket so that it appears to be from the day before, and therefore a winning ticket. He or she then sells the ticket to the mark, claiming it is a winning ticket, but for some reason, he or she is unable to collect the prize (not eligible, etc.). The particular cruelty in this scam is that if the mark attempts to collect the prize, the fraudulently altered ticket will be discovered and the mark held criminally liable. This con was featured in the movie Matchstick Men, where Nicolas Cage teaches it to his daughter. A twist on the con was shown in Great Teacher Onizuka, where the more-than-gullible Onizuka was tricked into getting a "winning ticket". The ticket wasn't altered, but the daily newspaper reporting the day's winning numbers was altered with a black pen.

Three-card Monte, "find the queen", the "three-card trick", or "follow the lady" is essentially the same as the centuries-older shell game or thimblerig (except for the props). The trickster shows three playing cards to the audience, one of which is a queen (the "lady"), then places the cards face-down, shuffles them around, and invites the audience to bet on which one is the queen. At first the audience is skeptical, so the shill places a bet, and the scammer allows him to win. In one variation of the game, the shill will (apparently surreptitiously) peek at the lady, ensuring that the mark also sees the card. This is sometimes enough to entice the audience to place bets, but the trickster uses sleight of hand to ensure that he always loses, unless the con man decides to let him win, hoping to lure him into betting much more. The mark loses whenever the dealer chooses to make him lose. This con appears in the Eric Garcia novel Matchstick Men and is featured in the movie Edmond. The scam is also central to the Pulitzer prize-winning play Topdog/Underdog. It also appears in episodes of White Collar, Leverage, Newsradio, Everybody Hates Chris, The Simpsons, and Hustle.[citation needed] It is also seen in foreign films an example of which is "Şark Bülbülü" wıth Kemal Sunal. In Turkish the term "Üç Kağıtçı" meaning 'a three carder' i.e. the dealer of a three-card monte scam; is used as a general term for any fraudster.

A variation on this scam exists in Barcelona, Spain, but with the addition of a pickpocket.[citation needed] The dealer and shill behave in an overtly obvious manner, attracting a larger audience. When the pickpocket succeeds in stealing from a member of the audience, he signals the dealer. The dealer then shouts the word "aguas"—colloquial for "Watch Out!"—and the three split up. The audience is left believing that the police are coming, and that the performance was a failed scam.[citation needed]

A variant of this scam exists in Mumbai, India.[citation needed] The shill says loudly to the dealer that his cards are fake and that he wants to see them. He takes the card and folds a corner and says in a hushed voice to the audience that he has marked the card. He places a bet and wins. Then he asks the others to place bets as well. When one of the audience bets a large sum of money, the cards are switched.[citation needed]

Most diploma mills are not accredited by such an entity, although many obtain accreditation from other organizations (such as accreditation mills or corrupt foreign officials) to appear legitimate. Graduates of these institutions risk that the qualifications gained at these institutions may not be sufficient for further study, lawful employment or professional licensure as their issuers do not hold locally-valid accreditation to grant the degrees.

Some diploma mills perform no instruction or examination, instead issuing credentials based on payment and "life experience". A few have unknowingly issued degrees and credentials to companion animals.[30]

The Doctor of Divinity title is particularly prone to misuse. In the United Kingdom it is an earned postdoctoral credential which requires a string of publications, but in the United States any church may confer it as an honorary title; ordination mills readily grant this doctorate for a moderate fee and token amount of study.[31]

A vanity press is a pay-to-publish scheme where a publishing house, typically an author mill, obtains the bulk of its revenues from authors who pay to have their books published[32] instead of from readers purchasing the finished books. As the author bears the entire financial risk, the vanity press profits even if the books are not promoted (or badly promoted) and do not sell. The growth of print on demand, which allows small quantites of books to be printed cheaply, has accelerated this trend.

Vanity publishing is not the same as self-publishing, in that self-published authors own their finished books and control their distribution, relying on a print shop solely to turn camera-ready content into printed volumes. In a vanity press, the author takes the financial risk while the publisher owns the printed volumes.

A vanity award is an award which the recipient purchases, giving the false appearance of a legitimate honour.[33][34] These are closely related to the Who's Who scam, where a biographic subject pays for a vanity listing in a printed directory.

The World Luxury Association is a self-proclaimed international organisation based in China that offers "official registration" for luxury brands, and inclusion in an "official list" of luxury brands, in return for a fee.

Computer users unwittingly download and install rogue security software, malware disguised as antivirus software, by following the messages which appear on their screen. The software then pretends to find multiple viruses on the victim's computer, "removes" a few, and asks for payment in order to take care of the rest. They are then linked to con artists' websites, professionally designed to make their bogus software appear legitimate, where they must pay a fee to download the "full version" of their "antivirus software".

A modern scam in which the artist communicates with the mark, masquerading as a representative of an official organization with which the mark is doing business, in order to extract personal information which can then be used, for example, to steal money. In a typical instance, the artist sends the mark an email pretending to be from a company, such as eBay. It is formatted exactly like email from that business, and will ask the mark to "verify" some personal information at the website, to which a link is provided, in order to "reactivate" his blocked account. The website is fake but designed to look exactly like the business' website. The site contains a form asking for personal information such as credit card numbers, which the mark feels compelled to give or lose all access to the service. When the mark submits the form (without double-checking the website address), the information is sent to the swindler.

A similar caller ID spoofing scheme exists with misleading telephone calls ("vishing") facilitated by Internet telephony. A fraudster can make calls through an Internet-PSTN gateway to impersonate banks, police, schools or other trusted entities. A random dialer computer or auto-dialer can impersonate healthcare providers to get Social Security numbers and birthdates from elderly patients recently released from the hospital. The auto-dialer call states it is from a reputable hospital or a pharmacy and the message explains the need to "update records" to be from the hospital or a pharmacy.

Unsuspecting computer owners and users are being targeted by people claiming to be from Windows i.e. Microsoft or from their internet provider and then telling them that their computer/machine is creating errors and they need to correct the faults on their computers, they even get people to go to one site or another to show them so called errors, they are then required to give their credit card details so that they can purchase some form of support then they are asked to allow remote connection so that they can fix the problems. The victim's computer is then infected with malware or spyware or remote connection software such as Virtualpcsecure. Microsoft has denied any tie to the scheme, but the scams still continue.[35]

The art student scam is common in major Chinese cities. A small group of 'students' will start a conversation, claiming that they want to practice their English. After a short time they will change the topic to education and will claim that they are art students and they want to take you to a free exhibition. The exhibition will usually be in a small, well hidden rented office and the students will show you some pieces which they claim to be their own work and will try to sell them at a high price, despite the pieces usually being nothing more than an internet printout worth a fraction of their asking price. They will often try 'guilt tricks,' (e.g., introducing their "starving child") on people who try to bargain the price.

The Big Store is a technique for selling the legitimacy of a scam and typically involves a large team of con artists and elaborate sets. Often a building is rented and furnished as a legitimate and substantial business.[36] The "betting parlor" setup in The Sting is an example.

In 2014, a rural co-operative in Nanjing, China constructed an entire bricks-and-mortar fake bank with uniformed clerks behind counters; the unlicensed bank operated for a little over a year, then defaulted on its obligations, swindling Chinese savers out of 200 million Chinese yuan.[37]

Change raising, also known as a quick-change artist,[38] is a common short con and involves an offer to change an amount of money with someone, while at the same time taking change or bills back and forth to confuse the person as to how much money is actually being changed. The most common form, "the Short Count", has been featured prominently in several movies about grifting, notably Nueve Reinas, The Grifters, Criminal, and Paper Moon. For example, a con artist shopping at a gas station pays for a cheap item (under a dollar) and gives the clerk a ten dollar bill. The con gets back nine ones and the change and then tells the clerk he has a one and will exchange ten ones for a ten. This is what the scam artist is doing: getting the clerk to hand over the $10 before handing over the $1 bills. Then the scam artist hands over nine ones and the $10. The clerk will assume there has been a mistake and offer to swap the ten for a one. Then the con will probably just say: "Here's another one, give me a $20 and we're even." Notice that the scam artist just swapped $10 for $20. The $10 was the store's money, not the con's. To avoid this con, clerks should keep each transaction separate and never permit the customer to handle the original ten before handing over the ten ones. Another variation is to flash a $20 bill to the clerk, then ask for something behind the counter. When the clerk turns away, the con artist can swap the bill he is holding to a lesser bill. The clerk might then make change for the larger bill, without noticing it has been swapped. The technique works better when bills are the same colour at a glance like, for instance, U.S. dollar bills.[citation needed]

A similar technique exists when a con comes to a gas station with a young clerk, buying something cheap, showing him an uncommonly huge bill while not giving it and telling the clerk to prepare the change. While he's busy counting the change, the con would ask many questions in order to distract the young clerk. When change is counted and ready the con is acting as if he had given the huge bill. If the clerk does not remember having received the bill, the con will say he gave him the money. If the clerk is weak or distracted enough, he could let the con go away with the change.[citation needed]

Sometimes cab drivers in India try a similar con, when customers require some change back. For example, they may pay $100 for a $60 ride and expect a return of $40. But the con would say that he only received $10 and in fact needs $50 more. The mark is baffled, trying to remember and of course, the con has swiftly switched the $100 bill with a $10 one, waving it to show that this was really what the mark gave to him. Since the con has now made the mark look suspicious, the mark feels guilty and pays up. This scenario can also be created in markets, when vendors sometimes team up and support each other's cons, if the mark tries to resist.

In this scam, the confidence artist poses as a casting agent for a modeling agency searching for new talent. The aspiring model is told that he will need a portfolio or comp card. The mark will pay an upfront fee to have photos and create his portfolio, after which he will be sent on his way in the hope that his agent will find him work in the following weeks.[39] Of course, he never hears back from the confidence artist.

In a variation on this scam, the confidence artist is a casting agent involved with the adult entertainment industry. The mark is taken to the artist's office for an interview, in which she is told that she will have to pose for nude photos or shoot a casting video, usually involving sexual acts. Upon her agreement, the mark is sent on her way, as before. She may not have to pay upfront for a portfolio, but any material generated during her interview may be used and sold by the confidence artist without any payment to the mark.

In this scam, tens of thousands of solicitations in the guise of an invoice are mailed to businesses nationwide. They may contain a disclaimer such as "This is a solicitation for the order of goods or services, or both, and not a bill, invoice, or statement of account due. You are under no obligation to make any payments on account of this offer unless you accept this offer." (from 39 USC. 3001d2A) or 'THIS IS NOT A BILL. THIS IS A SOLICITATION. YOU ARE UNDER NO OBLIGATION TO PAY THE AMOUNT STATED ABOVE UNLESS YOU ACCEPT THIS OFFER.' (from USPS Domestic Mail Manual §CO31, Part 1.2) but are otherwise designed to appear to be invoices or renewals of existing display advertising in a trade directory or publication. The correspondence is formatted like an invoice, often with a sequential identification number, date, personalized description of the information to be published, payment details and total amount due which includes a token discount if paid within a specified time period.[40] In some cases, the company's current advertisement clipped from an existing publication (such as Thomas Register, Hotel and Travel Index or Official Meeting Facilities Guide) is attached to a solicitation for advertising in an unaffiliated, rival publication[41] which operates from a drop box.[42]

One variant sends a "Final Notice of Domain Listing" from an entity calling itself "Domain Services", which claims "Failure to complete your Domain name search engine registration by the expiration date may result in cancellation of this offer making it difficult for your customers to locate you on the web." The list of prospective victims is obtained from Internet domain whois listings and the solicitations look like a renewal of an existing domain name registration or listing. The "registration" actually offers nothing beyond a vague claim that the entity sending the solicitation will submit the victim's domain name to existing search engines for an inflated fee. It does not obligate the vendor to publish a directory, renew the underlying domain in any ICANN-based registry or deliver any tangible product.[43]

A similar scheme uses solicitations which appear to be invoices for local yellow pages listings or advertisements. As anyone can publish a yellow page directory, the promoted book is not the incumbent local exchange carrier's local printed directory but a rival, which may have limited distribution if it appears at all.[44] Instead of clearly stating audited circulation, the solicitations will confusingly claim to "offer 50000 copies" or claim "thousands of readers" without indicating whether the inferred quantity of directories was actually printed, let alone sold.

Public records listing legal owners of new registered trademarks are also mined as a source of addresses for fraudulent directory solicitations.

The intent is that a small fractional percentage of businesses either mistake the solicitations for invoices (paying them) or mistake them for a request for corrections and updates to an existing listing (a tactic to obtain a businessperson's signature on the document, which serves as a pretext to bill the victim).

One such vendor, World Trade Register (aka European Trade Register, World Company Register, World Business Directory, all related to EU Business Services Ltd), claims “To update your company profile, please print, complete and return this form. Updating is free of charge. Only sign if you want to place an insertion.” Only later does it become clear that signing the form incurs a nearly €1000/year fee for an advertisement of questionable value.[45]

In this scam, the confidence artist poses as a retail sales promoter, representing a manufacturer, distributor, or set of stores. The scam requires assistants to manage the purchases and money exchanges while the pitchman keeps the energy level up. Passersby are enticed to gather and listen to a pitchman standing near a mass of appealing products. The trickster entices by referring to the high-end products, but claims to be following rules that he must start with smaller items. The small items are described, and 'sold' for a token dollar amount - with as many audience participants as are interested each receiving an item. The pitchman makes an emotional appeal such as saying "Raise your hand if you're happy with your purchase" and when hands are raised, directs his associates to return everyone's money (they keep the product). This exchange is repeated with items of increasing value to establish the expectation of a pattern. Eventually, the pattern terminates by ending the 'auction' without reaching the high-value items, and stopping midway through a phase where the trickster retains the collected money from that round of purchases. Marks feel vaguely dissatisfied, but have goods in their possession, and the uplifting feeling of having demonstrated their own happiness several times. The marks do not realize that the total value of goods received is significantly less than the price paid in the final round. Auction/refund rounds may be interspersed with sales rounds that are not refunded, keeping marks off-balance and hopeful that the next round will refund. The Jam Auction has its roots in Carny culture.

This scam occurs when exchanging foreign currency. If a large amount of cash is exchanged the victim will be told to hide the money away quickly before counting it ("You can't trust the locals"). A substantial amount will be missing.

In some cases, insisting on counting to make sure the money is all there is the basis for a clever scam. The scam is sometimes called the Santo Domingo Sting, after an incident that took place there, reported by a journalist, Joe Harkins, who reported his involvement, in the early 1990s.[46] It works in countries where only banks and other designated parties are allowed to hold and exchange the local currency for US dollars at an "official" rate that is significantly lower than the "street" rate. It also requires a greedy tourist who wants to beat the official rate by dealing with illegal money changers. A person posing as an illegal money changer will approach the tourist with an offer to buy dollars at an illegal rate that may be even higher than the street rate. The changer offers to buy only large US currency, typically, a 100 dollar bill. As soon as the victim (the "mark") shows his $100 bill, the changer will actually count out and clearly show the promised amount of pesos. He then will push the pesos into the hands of the "mark" and urge they be counted as he takes the $100. "See, you've got the money. I'll wait while you make sure. Count it out loud so there is no mistake." And as the mark's careful count exceeds "street" rate, the changer pretends to realise he has overpaid the mark, and he becomes irrationally agitated and angry, accusing the mark of cheating. He grabs his money back, pushes the mark's bill back into his hands and takes back the pesos. The scam has been completed. The tourist has just lost $99. The mark has been handed back a prefolded $1 bill that has been swapped for the mark's $100 bill while he was distracted counting the pesos. (Until recently, US currency was largely uniform in size and color, meaning that when folded, a $1 and a $100 bill were almost indistinguishable. Even in 2014, careful folding of a US$100 bill easily conceals the switch).[citation needed] The money changer's pretended, but very credible, anger is a ruse to confuse the mark and delay his unfolding of the single bill until the scammer has departed.

There is a fraudulent confidence trick (a form of advance fee fraud) perpetrated on people in several countries who wish to be mystery shoppers. A person is sent a money order, often from Western Union,[47] or cheque for a larger sum than a mystery purchase he is required to make, with a request to deposit it into his bank account, use a portion for a mystery purchase and fee, and wire the remainder through a wire transfer company such as Western Union or MoneyGram; the money is to be wired immediately as response time is being evaluated. The cheque is fraudulent, and is returned unpaid by the victim's bank, after the money has been wired.[48] One scam involved fraudulent websites using a misspelled URL to advertise online and in newspapers under a legitimate company's name.[49] It should be remembered that this is not the only type of mystery shopping scam taking place which involves money being paid, as it has been widely reported in the UK that shoppers should "Watch out for some online mystery shopping scams which will cost you money for either training or for signing up without the promise of any work."[50]

Valid mystery shopping companies do not normally send their clients cheques prior to work being completed, and their advertisements usually include a contact person and phone number. Some fraudulent cheques can be identified by a financial professional. On February 3, 2009, The Internet Crime Complaint Center issued a warning on this scam.[51] A legitimate company that occasionally sends prepayment for large transactions says "We do occasionally fund upfront for very large spend purchases but we use cheques or direct bank transfers which should mean you can see when they are cleared and so can be sure you really do have the money."[47] It is standard practice for mystery shopping providers evaluating services such as airlines to arrange for the airfare to be issued beforehand at their own expenses (usually by means of a frequent flyer reward ticket). In any case, it is unlikely that any bona-fide provider would allocate a high-value assignment to a new shopper or proactively recruit new ones for that purpose, preferring instead to work with a pool of existing pre-vetted experienced shoppers.

The pigeon drop, which is depicted early in the film The Sting, involves the mark or pigeon assisting an elderly, weak or infirm stranger to keep a large sum of money safe for him. In the process, the stranger (actually a confidence trickster) puts his money with the mark's money in an envelope or briefcase,[clarification needed] with which the mark is then entrusted. The container is then switched for an identical one which contains no money, and a situation is engineered where the mark has the opportunity to escape with the money. If the mark takes this chance, he is merely fleeing from his own money, which the con artist will have kept or handed off to an accomplice.

A number of predatory journals target academics to solicit manuscripts for publication. The journals charge high publication fees but do not perform the functions of legitimate academic journals: editorial oversight and peer review - they simply publish the work for cash. In this case, the mark's need for publications is the stimulus for them to pay the fees. In some cases predatory journals will use fictional editorial boards or use respected academics' names without permission to lend a veneer of credibility to the journal. A curated database of predatory journals can be found at: "Scholarly Open Access".

The victim is sent a document which looks, on its face, to be a coupon or a cheque for some small amount as "prize winnings".[52] Buried in the fine print is something entirely different; an authorisation to slam the victim to an alternate telephony provider or even an authorisation for monthly direct withdrawals from the victim's bank account for "services" which were neither used nor desired.

Psychic surgery is a con game in which the trickster uses sleight of hand to apparently remove malignant growths from the mark's body. A common form of medical fraud in underdeveloped countries, it imperils victims who may fail to seek competent medical attention. The movie Man on the Moon depicts comedian Andy Kaufman undergoing psychic surgery, and it can also be seen in an episode of Jonathan Creek as well as an episode of Lost in which the character Rose travels to Australia in a last-ditch effort to cure her cancer.

A recovery room scam is a form of advance-fee fraud where the scammer (sometimes posing as a law enforcement officer or attorney) calls investors who have been sold worthless shares (for example in a boiler-room scam), and offers to buy them, to allow the investors to recover their investments.[53] A Nigerian 419 scam victim might receive a solicitation claiming to be from the Nigeria Economic and Financial Crimes Commission or another government agency.[54]

The scam involves requiring an advance fee before the payment can take place, for example a "court fee".[55]

The red flag in the 'recovery scam' is that the supposed investigative agency, unsolicited, approaches the victim.[56] A legitimate law enforcement agency would normally allow the victim to make the first contact, and will not solicit an advance fee. The recovery scam has the victim's number only because it is operated by an accomplice of the original scammer, using a "sucker list" from the earlier fraud.[57]

An apartment is listed for rent, often on an online forum such as Craigslist or Kijiji, at or just below market value. The vendor asks for first and last month's rent up front, sometimes also asking for references or personal information from the prospective tenants. The rent payment clears the bank, the new tenants arrive with a truckload of worldly possessions on moving day to find that the same unit has been rented to multiple other new tenants and that the supposed "landlord" is not the owner of the property and is nowhere to be found.[58]

The Rip Deal is a swindle very popular in Europe and is essentially a pigeon drop confidence trick. In a typical variation scammers will target, say, a jeweler, and offer to buy some substantial amount of his wares at a large markup provided he perform some type of under-the-table cash deal, originally exchanging Swiss francs for euros. This exchange goes through flawlessly, at considerable profit for the mark. Some time later the scammers approach the mark with a similar proposition, but for a larger amount of money (and thus a larger return for the mark). His confidence and greed inspired by the previous deal, the merchant agrees—only to have his money and goods taken, by sleight-of-hand or violence, at the point of exchange.[citation needed] This scam was depicted in the movie Matchstick Men.

The same term is used to describe a crime where a vendor (especially a drug dealer) is killed to avoid paying for goods.[59]

Various schemes exist to bill victims for unsolicited goods or services.[60]

A common scam targeting businesses is the toner bandit swindle; an unsolicited caller attempts to trick front-office personnel into providing manufacturer/model or serial numbers for office equipment and/or the name of the employee answering the call. Often, the call will be misrepresented as a "survey" or a "prize" award.[61] The business then receives inflated invoices for unsolicited copy paper, copy machine toner, cleaning supplies, light bulbs, trash bags or other supplies, using the name of the person who answered the call to falsely claim this person ordered the items. When the business objects, the workers are threatened with lawsuits or harassed by bogus collection agencies.[62]

Another, targeting the elderly, claims a free medical alert device has been ordered for a patient by a family member or medical doctor. An automated message says "that someone has ordered a free medical alert system for you, and this call is to confirm shipping instructions" before the call is transferred to a live operator who requests the elderly patient's credit card and identity card numbers. The device is not free; there is a high monthly charge for "monitoring". The family didn't buy or order it, nor did a practitioner; the call is fraudulent.[63][64]

Wedding planner scams prey on the vulnerability of young couples, during a time when they are most distracted and trusting, to embezzle funds for the planner's personal use. In the first type of fraud, the wedding planner company may offer a free wedding in a tie-up with a media station for a couple in need of charity, and collect the donations from the public that were meant for the wedding. In a second type of fraud, the planner asks couples to write checks to vendors (tents, food, cakes) but leave the name field empty, which the planner promises to fill in. As most vendors were never hired nor paid, the scam would then be exposed on the day of the wedding. A real life example is a Kansas TV station story of a wedding planner, Caitlin Hershberger Theis, who scammed three couples through her wedding planner consultancy, Live, Love and be Married using these two schemes.[65]

The blessing scam targets elderly Chinese immigrant women, convincing them that an evil spirit threatens their family and that this threat can be removed by a blessing ceremony involving a bag filled with their savings, jewelry or other valuables. During the ceremony, the con artists switch the bag of valuables with an identical bag with valueless contents and make off with the victim's cash or jewelry.

This scam is perpetrated through the phone where the caller threatens the victim with a fictitious arrest warrant. To make this threat seem real, the caller ID identifies the caller as that of the local sheriff. Victims are told they must pay a fine to avoid arrest. Fines are in the hundreds, sometimes, thousands of dollars. The payment is requested through Western Union, Green Dotprepaid card, or similar form of untraceable currency exchange.

The dropped wallet scam usually targets tourists. The con artist pretends to accidentally drop his wallet in a public place. After an unsuspecting victim picks up the wallet and offers it to the con artist, the scam begins. The artist accuses the victim of stealing money from the wallet and threatens to call the police, scaring the victim into returning the allegedly stolen money. Cases have been reported in eastern Europe.